I almost had a nice 670 last fall. The guys wife sold it 20 minutes before I got there to pick it up.
I got the 625 oiling better after a little trial and error figuring which way was up on the screw. I'm missing the outer bar plate though, or is there even supposed to be one? I found an IPL on Chainsawr, but it won't seem to load past page one.
625-670 inner 501 81 48 01 266, 268, 272xp, 288xp,
625-670 outer 501 44 45 01 nothing
bummer on the outer. maybe something from partner/pioneer
i'll check some misc parts for an outer.